life cycle of typical angiospermic plant short note
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The life cycle of the angiosperms is very similar to ferns. In contrast to ferns the angiosperms (and conifers) produce two kinds of spores: those that produce male gametophytes and those that produce female gametophytes. The male gametophytes (pollen) are transported in various ways (wind, insects, etc) to the female receptive site. The female gametophyte on the other hand, is retained on the parent plant
Flowers form on the dominant sporophyte plant. They consist of highly specialized male and female reproductive organs. Flowers produce spores that develop into gametophytes. Male gametophytes consist of just a few cells within a pollen grain and produce sperm. Female gametophytes produce eggs inside the ovaries of flowers. Flowers also attract animal pollinators.
If pollination and fertilization occur, a diploid zygote forms within an ovule in the ovary. The zygote develops into an embryo inside a seed, which forms from the ovule and also contains food to nourish the embryo. The ovary surrounding the seed may develop into a fruit. Fruits attract animals that may disperse the seeds they contain. If a seed germinates, it may grow into a mature sporophyte plant and repeat the cycle.
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